Bug 3387

Summary:	bitbake-layers: figure out the LAYERDEPENDS
Product:	[Build System, Metadata & Runtime] BitBake	Reporter:	Robert Yang <liezhi.yang>
Component:	bitbake	Assignee:	Robert Yang <liezhi.yang>
Status:	VERIFIED FIXED	QA Contact:
Severity:	enhancement
Priority:	Medium	CC:	alexandrux.palalau, bluelightning, liang.li2, poky.bs.watcher, poky.watcher, richard.purdie, sgw, zhenfeng.zhao
Version:	1.4
Target Milestone:	1.4 M4
Hardware:	x86
OS:	Multiple
Whiteboard:
OS type for building Yocto:	---	Type of Regression:	---
Verified:		Documentation change:	---

Description Robert Yang 2012-11-05 14:15:24 UTC

Paul Suggested that enhance bitbake-layers to figure out the LAYERDEPENDS, here are some basic thoughts:

1) Add a command "show-depends" for bitbake-layers.

2) It is not used for showing the LAYERDEPENDS which has been defined in the layer.conf, but for figuring out the LAYERDEPENDS, for example, if the recipe_A from layer_A depends on the recipe_B which is from layer_B, then layer_A should depend on layer_B, it should walk all the recipes in the layer.

3) The LAYERDEPENDS is made by two parts "layer_name:layer_version", it seems not easy to figure out the layer_version, we can refer the LAYERVERSION, but it may not accurate, for example, if layer_A depends on layer_B, and layer_B's LAYERSION  = 3, we can't assume that layer_A's "LAYERDEPENDS = layer_B:3", I think that we just figure out the layer_name is OK.

Comment 1 Robert Yang 2012-11-05 14:20:39 UTC

Hi Paul,

Would you please help me to take a look at the draft design ? (The first comment  in the upstairs)

Comment 2 Paul Eggleton 2012-12-04 15:26:34 UTC

I'm not sure that we actually need to figure out a value for LAYERDEPENDS here - we just need to be able to determine where there is a dependency between recipes that crosses a layer boundary and report that.

Comment 3 Robert Yang 2012-12-06 12:40:39 UTC

(In reply to comment #2)
> I'm not sure that we actually need to figure out a value for LAYERDEPENDS
> here - we just need to be able to determine where there is a dependency
> between recipes that crosses a layer boundary and report that.

Thanks, Paul, I will send the patch sooner.

Comment 4 Robert Yang 2013-02-01 03:09:33 UTC

Merged into master:

http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=8d80483e2f0f755a61087be1dffaf595fbc467fd

http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=4a09c91ce4a0b040a71a49d741d10fc850e887fa

Comment 5 liang li 2013-02-05 08:57:52 UTC

no error when run following command:
1. source path_to_git/oe-init-build-env build_dir
2. bitbake-layers show-cross-depends
git info: 7e9cb437b1b720e656f4a33f73c07c5dc7356a2c
git branch:poky/master

Comment 6 Alexandru Palalau 2013-05-02 09:28:27 UTC

The following Testopia test case was created:
https://bugzilla.yoctoproject.org/tr_show_case.cgi?case_id=756